In the event of a vacancy in the office of the state treasurer, the governor may appoint a replacement to fill the remainder of the term.

[5][6][7] The state treasurer also makes certified copies of deeds, bonds, and other documents filed with his or her office and promotes Wisconsin's unclaimed property program.

[10][11][12][13] Occasional functions performed by the state treasurer include approving the amounts and sureties filed with the Department of Administration in connection to the Department of Revenue's receipt of paid income and franchise taxes, receiving payments from the Banking Division in connection with liquidation proceedings of banks, acknowledging the satisfaction and discharge of certain mortgages involving the state, and conducting training conferences for municipal clerks and treasurers.

[20] Most notably, 2003 Wisconsin Act 33 transferred the cash and debt management functions of the state treasurer's office to the Department of Administration.

The same act also transferred the Local Government Investment Pool and corresponding management services functions to the Department of Administration.